Can-filling pump.



A. A. BOWSERH, CAN FILLING PUMP. APPLICATION FILED APR. 29, 1907.

Patented Feb.4, 1913.

2 SHEETS-SHEET 1.

A. A. BOWSER.

CAN FILLING PUMP.

' APPLICATION FILED APR. 29. 1907.

Patented Feb. 4, 1913.

2 SHEETS-SHEET 2.

5/ w m 7 z der, will cause the liquids to adhere thereto. and become hard and dry, thereby not only v reducing the diameter of the cylinder but considerable difficulty.

ALLEN A. nowsnn, or roRrwAYNE, INDIANA, ASSIGNOB or roar WAYNE, INDIANA, A CORPORATION.

or INDIANA.

CAN-FILLING PUMP.

Application To all whom it may concern: j"

Be it known that I, ALLEN A. BowsER, a citizen of the United States, residing at Fort Wayne,

and useful Improvements in Can-Filling Pumps, of which the following is a specification. v

Heretofore in handling or dispensing heavy oils or liquids, considerable difiiculty has been experienced in that the air coming in contact with the wall of the pump cylincausing the piston to work hard and with To overcome this difficulty and serious objection and to provide means for preventing the caking or hardening of the oils-or liquids on the wall of the pump cylinderis the primary object of this invention.

A further object is to provide improved means foralways maintaining the pump cylinder full of liquid so long as there is sufficient liquid in the tank from which the liquid is dispensed. v

A further object is to provide an improved pump of this character which will be simple, cheap and durable in construction and efficient and effective in operation.

To the attainment of these ends and the accomplishment of other new and useful objects, as will appear, the invention consists in the features of novelty in the construction, combination and arrangement of the several parts hereinafter more fully described and claimed and shown in the accompanying drawings, illustrating an exemplification of the invention and in which- *Figure 1 is an elevation of an improved pump constructed in accordance with the principles of this invention. Fig. 2 is a sectional view on line 2.2 of Fig. 1. Fig. 3 is a sectional view on line-3 3' ofF 1g. 2. gig. 4 is a sectional view on line 44 of ig. 2.

Referring more particularly to the drawings and in this exemplific'ation of the invention, the numeral 10 designates a supporting base which is provided with a chamber ll'opening through the top thereof, and an inlet opening 12 extending through the bottdin thereof and communicating with the chamber 11.

Specification of Letters Patent.

and April 29, 1907. Serial No. 379,994.

in the county of Allen and State of Indiana, have invented certain new ity of the cylinder 21 the cylinder 21 wil "shown,

The base 10 is preferably Patented Feb. 4, 1913.

provided with supporting legs or membersthe same elevated above the I I support uponwhich the base base isalso provided with a discharge open- 13 for holding rests. The

ing 14 in the upper face thereof and a passage "15 which forms a; communication between the. chamber 10.. and the discharge opening 14. A suitable valve within the chamber 11 to form a closure for the inlet opening 12 and said valve is held from displacement in any desired or suitable manner, preferably web 18 arranged in the inlet 12 and said stem is preferably provided with a threaded extremity which engages the valve 16 on one side of the web 18 and ahead 19 on the other side of the. web so that when the valve is unseated, the head 19 will engage the web 18 and prevent the valve from being accidentally. displaced.

The chamber 11 is preferably provided -with a shouldered portion 20, upon which the end of a suitable cylinder 21- is adapted to rest and said cylinder is preferably of a configuration similar to the configuration of the chamber 11 and of a diameter substantially equal to the diameter of said chamber.

A suitable head 22 is provided with a 8 said head isadapted to rest chamber23, which opens through one face of the head and upon and be supported by the free extreml communicate with-the chamber 23 therein. The .head is also proby means of a stem- 17 which passes through a supporting TO s. r. BOWSER & co. INQ,

16 is arranged I in such a manner that vided with a discharge outlet 24, which opens through the same face of the head, and the chamber-23 has communication with the discharge outlet 24 through the medium of a suitable passage 25. A discharge pipe 26 is connected by one end to the discharge outlet 24 inany desired or suitable manner, preferably by means of screw threads as and said discharge pipe 26 extends toward the base 10 and terminates at a point slightly above the base of the sup porting legs 13, so that when the pump cylinder is placed within the tank 27 so that the supporting legs 13- rest upon the bottom 28 thereof, the free extremity of the disrods or bolts 29, which are provided with clamped together.

heads and said rods or bolts 29 pass through suitable ears or projections 31 on the head 22 and the free extremities of said rods or bolts are preferably screw threaded as at 32 and are adapted to be seated in suittble threaded apertures in the base 10 and when in position the heads 30 will rest upon the ears or projections 31 and by seating the threaded extremities 32 in their respective apertures, the parts will be firmly The discharge opening 14 is preferably provided with interior screw threads33 and located within the opening is a valve seat 34,

which is preferably provided with a periph-' valve 37 is adapted to dooperate with the valve seat 34 and said valve 37 is preferably of a construction similar to the construction of the valve 16. Connected with the coupling member 36 is a reducer member 38 and connectedwith said reducer member 38 is a discharge pipe 39, the upper extremity of which projects above the top of the tank 27 and secured to said extremity is a faucet 40, the specific construction of which forms no part of the present invention.

If desired, a valve seat 41 and valve 42, similar in construction to the valve seat 34 and the valve 37, may be arranged between the coupling member 36 and the reducer member 38 and may beheld in position by means of the reducer member 38 engaging the peripheral flange 43 of the valve seat. The upper extremity of the discharge pipe 39 maybe supported in any desired or suitable manner, preferably by means of a bracket or support 44, which is secured to a base 45, the latter being adapted to rest upon and be secured to the top 46 of the tank, so that when the cylinder 21 is placed within the tank, the support 45 will rest upon the top 46.

A suitable piston is adapted to move within the cylinder 21 and said piston pref-' erably comprises a body portion 47, having a centrally disposed and upwardly opening recess or chamber 48. A piston rod' 49 is pro- .vided with an enlargement or head 50'on one extremity thereof and said extremity, together with the head or enlargement 50, is adapted tobe seated within the recess or chamber 48. This recess or chamber'48 is preferably provided with interior screw threads and surrounding the piston rod 49 is a sleeve or collar 51, which is provided with peripheral screw threads and said sleeve or collar is adapted to be seated in the recess or chamber 48 and isof such a diameter that the peripheral screw threads thereon will engage the screw threads in the recess or chamber 48 to secure the piston rod and piston together.

The body portion of the piston 47 is preferably of a diameter considerably smaller than the diameter of the cylinder and said body portion is provided with a peripheral flange 52, which is of a diameter only slightly smaller than the diameter of the cylinder 21. A suitable flexible member 53 .is supported by-the piston head 47 so as to surround the piston rod 49' and is of a diameter somewhat larger than the diameter of the cylinder 21, so that when the flexible member is in position, the periphery thereof will. engage and be bent downwardly by the wall of the cylinder; This flexible member is held in position preferably by means of a plate 54 which surrounds the piston rod 49 and is itself held in position preferably by means of a nut or collar 55 adjustably mounted upon the sleeve 51. A flexible member 56, such as a coil spring or the like, surrounds the body portion of the piston head 47 and rests upon the flange 52 so as to engage the periphery of the flexible member 53-to hold the latter yieldingly in engagement with the wall of the cylinder 51 as the piston is reciprocated.

The piston rod 49 passes through the head 22 and is preferably surrounded by a tubular I member 57, one end of which is secured to the head 22 and the other end to the support 45. The piston may be reciprocated in any desired or suitable manner, preferably by means of a crank 58, which is connected to j a suitable 'pinion gear (not shown) the latter being adapted to engage a suitable rack member 59 carried by the piston rod 49 so that the operation of the crank will move the piston. I

llf desired, a suitable screen .60 may be provided to surround the base 10 and said screen maybe constructed of any suitable reticulated material, such as wire gauze or the like, and is preferably provided with an imperforate bottom 61. This screen is for the purpose of preventing foreign matter from enterin the cylinder 21 and may be held in position in any desired or suitable manner, preferably by means of a screw or bolt 62, which passes through the imperforate bottom and may be seated in one its associated parts, is placed within the tank 27 so as to rest upon the bottom 28 thereof, and with the support 45 resting 1,052,033 I q I 3 upon the top 46 of the tank, which will perwhich has not yet been discharged from the mit the crank handle 58 and the discharge cylinder, will prevent the air from coming nozzle to extend above the top of the m Contact with the wall of the cylinder betank. The tank being filled with oil, the low h P -e crank handle 58 may bet t d f th In order that the invention might be fully position shown in Fig. 1 of the drawing to understood y those, skilled l the the the left, which will raise the piston 47 to the detalls of the r gq e embd1n 1ent'there0f top of the cylinder 21. This movement of have been thus speelfieeuy deserlbed', but the piston will cause a suction within the Wh I claim as new thereill'alld desire cylinder 21 to seat the valves 37, 42 and at to Secure y Letters Patent 60 the same time unseat the valve 16 and draw n' p mp h m na 0nf0fa cylinder,

vthe liquid into the cylinder through the P reciprocable n, m -f r p: screen 60 and inlet 12.- When the pi to eratlng theplston, a valve controlled intake has reached the limit of it u w rd m duct communicating with the source of supment, which movement may be regulated by ply at one end of the cylinder, 'a valve con-' suitable adjustable stops 63 and a coeperattr ll dlscharge orifice t the am nd of ing stop 64 on. the rack member 59, the the cylinder with the intakeduct, and a suchandle 58 maybe rotated i th o it tion pipe communicating with the cylinder direction, causing the piston 47 to descend. n he PPO d p omwsaid $110- The pressure exerted upon the liquid in the n p pe mm ni a lng With he Source of cylinder as the piston descends wlll seat the supply f the pump and forming an inlet valve 16 and force the liquid below the pisand outlet cylinder adapted to receive liquid ton 47 through the passage 15, to unseat the from the supply to discharge the same into valves 37, 42, which will permit the liquid the cylinder on the other side of the piston. to pass through the discharge opening 14 2 .'In a pump the combination of a cylinto the discharge pipe 39 and out through inder, a piston reciprocabletherein, means the faucet 40 whenthe latter is open. Durfor operating the plston, a valve controlled ing the descent of the piston 47, a suction intake duct communicatingwith the source will be created in the cylinder abovethe of supply at one end of the cylinder, a-valve piston 47, WhlOh Wlll draw a quantity of the controlled discharge or' ce at the same end liquid from the tank into the cylinder of the cylinder with the intake duct, and a through the pipe 26 and passage 25, theresuction pipe communicatin with the cylby filling the cylinder above the piston. inder on the opposite side 0 the piston, said Upon-the reverse'movement or during the suction lpipe-ommunicating with the source ascent of "the piston, the liquid which has of supp y of the pump and forming an inlet been drawn into the upper ortion of the and outlet to the cylinder adapted to receive cylinder will be discharged ack into the liquid from the supply* to discharge .the tank through the passage '25- and pipe 26; a same into the cyhnder on the other side of suitable bushing or packing 65 belng prothe piston, the inlet of the suction pipe from vided to prevent the liquid from passing out the source of supply being disposed in close 9 through the tubular member 57. Thus it prox mlty t0 h level f he ntake duct.

will be seen that a' reciprocating motion of In testlmony whereof I- have signed my the piston 47 will impart a churning moname to this specification, 1n the presence tion to the liquid into and out of the top of two, subscrlblng witnesses, on this 23rd part of the cylinder, thereby maintaining day of April, A. D. 1907. the upper portion of the cylinder full of BOWSER.

hquld to prevent the air from coming in contaet'with the wall of the cylinder, while Witnesses: the liquidwhich has been drawn into, thev ,S. B. Brown, cylinder through theinlet open1ng12 and J. W. RUNYAN. 

